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Old   June 6, 2015, 07:30
Default Initial Condition
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Mojtaba Ans
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Hi everybody;
I want to simulate a free surface flow (transient) in CFX.
I have to set fluid elevation as Initial Condition.
The model is a reservoir that has an initial volume of water. The elevation of water surface is 2 meters. I really need your help.
What should I do?

Thanks, Mojtaba
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Old   June 6, 2015, 22:31
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Glenn Horrocks
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Have you tried the CFX tutorials? The free surface flow over a bump tutorial looks relevant here.
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Old   June 7, 2015, 02:01
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Quote:
Originally Posted by ghorrocks View Post
Have you tried the CFX tutorials? The free surface flow over a bump tutorial looks relevant here.
Yes I did it, but my problem has not solved yet! My question is about fluid elevation in initial condition, but it isn't mentioned in the tutorial.
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Old   June 7, 2015, 02:18
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You can set initial conditions with simple commands like setting the initial liquid volume fraction to:

step((2[m]-y)/1[m])

and the gas volume fraction to automatic.
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